FBG Fiber Optic Grating Demodulator4/8/16 channels selectable
GY-FBG Fiber Optic Grating Demodulator Module, wavelength range from 1525nm to 1565nm,4/8/16 channels selectable
Huang
Email: Hqy@ybphotonics.com
Product Info
Introduction
GY-FBG series fiber grating demodulator module can be matched with various fiber grating sensors, through the detection of grating wavelength changes to achieve the purpose of monitoring temperature, strain, pressure and other physical quantities. The wavelength range is from 1525nm to 1565nm, and the wavelength, light intensity and spectral data of the grating to be measured can be reported to the host computer through the serial port RS232.
Applications
- FBG Demodulation
- Oil & Gas (Storage Tank Monitoring, Oil & Gas Platform Structural Safety Monitoring, Pipeline Safety Monitoring)
- Energy (wind power, oil wells, pipelines, nuclear reactors, generators)
- Structural Monitoring (bridges, dams, tunnels, mines, buildings)
- Homeland Security (perimeter intrusion, hotspot monitoring, security gate monitoring)
- Spacecraft (airframes, composite structures, wind tunnels, static testing)
- Research Experiments
- Distributed grating temperature measurement
- Distributed grating strain monitoring
specificities
- Resistant to long-term vibration 2g
- Wide temperature range: -40~65℃
- Convenient communication: RS232/422
- Low power consumption: less than 6W peak power consumption
Technical indicators
Product Model GY-FBG channel 4, 8, 16 channels optional wavelength range 40nm（1525nm～1565nm） wavelength resolution 0.25pm Wavelength Repeatability 2.5pm Wavelength Absolute Accuracy ±10pm scanning frequency 1Hz，100Hz dynamic range 20-40dB channel spectrum With full-spectrum function Tandem-connectable FBG wavelength spacing 0.5nm optical interface FC/APC operating temperature ‘-40℃~60℃ Rated voltage/current 9/1 V/A Size and weight 125*100*30mm
Measurement principle
The FBG Fiber Bragg Grating Demodulator is normally polled at x pm intervals to emit light at different wavelengths, with a scanning range of 1525nm to 1567nm. The sensors are calibrated at the factory, and different wavelengths correspond to different physical quantities (as shown below). When we use the demodulator to transmit light to the sensor (grating), external influences will cause the fiber to deform and then be able to filter out different wavelengths of light. We can monitor the physical quantity by monitoring the wavelength returned by the grating sensor.
GY-FBG series fiber grating demodulator module can be matched with various fiber grating sensors, through the detection of grating wavelength changes to achieve the purpose of monitoring temperature, strain, pressure and other physical quantities. The wavelength range is from 1525nm to 1565nm, and the wavelength, light intensity and spectral data of the grating to be measured can be reported to the host computer through the serial port RS232.
Applications
- FBG Demodulation
- Oil & Gas (Storage Tank Monitoring, Oil & Gas Platform Structural Safety Monitoring, Pipeline Safety Monitoring)
- Energy (wind power, oil wells, pipelines, nuclear reactors, generators)
- Structural Monitoring (bridges, dams, tunnels, mines, buildings)
- Homeland Security (perimeter intrusion, hotspot monitoring, security gate monitoring)
- Spacecraft (airframes, composite structures, wind tunnels, static testing)
- Research Experiments
- Distributed grating temperature measurement
- Distributed grating strain monitoring
specificities
- Resistant to long-term vibration 2g
- Wide temperature range: -40~65℃
- Convenient communication: RS232/422
- Low power consumption: less than 6W peak power consumption
Technical indicators
| Product Model | GY-FBG |
|---|---|
| channel | 4, 8, 16 channels optional |
| wavelength range | 40nm（1525nm～1565nm） |
| wavelength resolution | 0.25pm |
| Wavelength Repeatability | 2.5pm |
| Wavelength Absolute Accuracy | ±10pm |
| scanning frequency | 1Hz，100Hz |
| dynamic range | 20-40dB |
| channel spectrum | With full-spectrum function |
| Tandem-connectable FBG wavelength spacing | 0.5nm |
| optical interface | FC/APC |
| operating temperature | ‘-40℃~60℃ |
| Rated voltage/current | 9/1 V/A |
| Size and weight | 125*100*30mm |
Measurement principle
The FBG Fiber Bragg Grating Demodulator is normally polled at x pm intervals to emit light at different wavelengths, with a scanning range of 1525nm to 1567nm. The sensors are calibrated at the factory, and different wavelengths correspond to different physical quantities (as shown below). When we use the demodulator to transmit light to the sensor (grating), external influences will cause the fiber to deform and then be able to filter out different wavelengths of light. We can monitor the physical quantity by monitoring the wavelength returned by the grating sensor.
